CN2363900Y - Roller type dustproof blackboard eraser - Google Patents
Roller type dustproof blackboard eraser Download PDFInfo
- Publication number
- CN2363900Y CN2363900Y CN 99200369 CN99200369U CN2363900Y CN 2363900 Y CN2363900 Y CN 2363900Y CN 99200369 CN99200369 CN 99200369 CN 99200369 U CN99200369 U CN 99200369U CN 2363900 Y CN2363900 Y CN 2363900Y
- Authority
- CN
- China
- Prior art keywords
- dust
- utility
- blackboard eraser
- model
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a roller type dustproof blackboard eraser which can wipe and collect chalk dust. The utility model is composed of a housing body, wiping board rollers, roller supporting boards, dust receiving boards, etc. The utility model is characterized in that two wiping board rollers are arranged in the housing body, and both sides of the rollers are provided with roller supporting boards. The two wiping board rollers are supported on long holes which are arranged at the roller supporting boards, and the dust receiving boards are arranged at the outer sides of the roller supporting boards, and the dust receiving boards and the housing body form a closed housing body. A braking pad is arranged on the housing body. The utility model has the advantages of reliable wiping performance, good dust gathering effect, simple fabrication and low cost. The utility model accomplishes controlling and collecting dust, and solves the problems that the dust pollutes environment and influences health.
Description
The utility model belongs to a kind of teaching aid, relates in particular to the roll-type dust-proof blackboard eraser of a kind of erasable, collection, chalk dust.
Existing blackboard eraser does not have dust arrester mostly, and dust disperses during use, has a strong impact on the healthy of teachers and students, in order to address the above problem, people have studied some electronic scrubbing brushes and dust suction scrubbing brush, but all because of its complex structure, cost height, reason such as fragile are not easy to promote.
It is good that the purpose of this utility model provides a kind of wiping properties, dust catching efficiency merchant, and simple in structure, light durable roll-type dust-proof blackboard eraser.
The utility model is to realize like this, it is made up of institutes such as housing, wiping board roller, roller support plate, dust-receiving plates, it is characterized in that, in housing, be provided with two wiping board rollers, the both sides of wiping board roller are provided with the roller support plate, two rollers are bearing in the slotted hole that the roller support plate opened, and dust-receiving plate is located at the outside of roller support plate and the housing that housing forms a sealing, is provided with brake pad on housing.
Main points of the present utility model are that also the axis hole of being opened is a slotted hole on the roller support plate, air-vent is located at the middle and upper part of roller support plate, also have air-vent on described dust-receiving plate plate.
Main points of the present utility model also are, are provided with flexible sealing strip at shell edge.
The utility model has the advantages that, control that brake pad rotates the wiping board roller and the air-vent of offering make attached to the dust on the roller to be brought in the housing, be unlikely outer and raise, the space all around that flexible sealing strip is wiped roller and contacted with blackboard surface reaches minimum degree, near sealing state, and wiping properties is reliable, poly-dirt is effective, and processing is simple, and cost is low, assembling easily, and is convenient durable.
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is A-A cutaway views of the utility model Fig. 1.
Referring to Fig. 1,2, the utility model is made up of institutes such as housing 1, wiping board roller 2, roller support plate 3, dust-receiving plates 4, it is characterized in that, in housing 1, be provided with two wiping board rollers 2, the both sides of wiping board roller 2 are provided with roller support plate 3, two wiping board rollers 2 are supported in the slotted hole that roller support plate 3 opened, and air-vent 9 is located at the middle and upper part of roller support plate 3.Dust-receiving plate 4 is located at the two ends up and down of outside housing of roller support plate 3 and the housing that housing 1 forms a sealing, on dust-receiving plate 4, also have air-vent 8, main points of the present utility model also are to be provided with filtering material 10 on air-vent 8, are provided with brake pad 5 on housing 1.For the space all around that the roller wiping is contacted with blackboard surface reaches minimum degree, near sealing state, the utility model is provided with flexible sealing strip 7 in the shell edge lower part.Break for preventing that this blackboard eraser from falling down in use, the utility model also is provided with anti-sliding sleeve (6) on shell.
In the use, when this roller is wiped under the effect at staff to left movement, rely on the right side in hole in the slotted hole that two wiping board rollers 2 are opened simultaneously on roller support plate 3, when leaning against on the brake pad 5, right roller stops operating, on blackboard, do sliding friction, so just can make chalk dust under wiping attached to its surface, in like manner wiping board roller 2 is oppositely wiped when moving, dust is brought in the housing of sealing, at this moment the air-vent of being opened on the air-vent 9 opened of the middle and upper part of roller support plate 3 and two dust-receiving plates 48 has played crucial effect, blackboard eraser wiping board roller 2 when working in reciprocating mode has a roller to do rolling preceding all the time, make it in housing, produce air-flow, make a large amount of dust toward the motion of ventilative place, finish the dust suction action.Thereby realize control, collection, solve dirty seven environment of dust, influence the problem of health dust.
The utility model is simple in structure, and cost is low, and is light durable, can be used as the substitute products of existing blackboard eraser.
Claims (6)
1, a kind of roll-type dust-proof blackboard eraser, form by housing (1), wiping board roller (2), roller support plate (3), dust-receiving plate institutes such as (4), it is characterized in that, in housing (1), be provided with two wiping board rollers (2), the both sides of roller are provided with roller support plate (3), two wiping board rollers (2) are bearing in the slotted hole that roller support plate (3) opened, and dust-receiving plate (4) is located at the two ends up and down of outside housing of roller support plate (3) and the housing that housing (1) forms a sealing, is provided with brake pad (5) on housing (1).
2, roll-type dust-proof blackboard eraser according to claim 1 is characterized in that the axis hole of being opened on the roller support plate (3) is a slotted hole, and air-vent (9) is located at the middle and upper part of roller support plate (3).
3, roll-type dust-proof blackboard eraser according to claim 1 is characterized in that also having on the described dust-receiving plate plate (4) air-vent (8).
4,, it is characterized in that on described air-vent (8), being provided with filtering material (10) according to claim 1 or described roll-type dust-proof blackboard eraser.
5, roll-type dust-proof blackboard eraser according to claim 1 is characterized in that described shell edge is provided with flexible sealing strip (7).
6, roll-type dust-proof blackboard eraser according to claim 1 is characterized in that described shell is provided with anti-sliding sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99200369 CN2363900Y (en) | 1999-01-18 | 1999-01-18 | Roller type dustproof blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99200369 CN2363900Y (en) | 1999-01-18 | 1999-01-18 | Roller type dustproof blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2363900Y true CN2363900Y (en) | 2000-02-16 |
Family
ID=33996374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99200369 Expired - Fee Related CN2363900Y (en) | 1999-01-18 | 1999-01-18 | Roller type dustproof blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2363900Y (en) |
-
1999
- 1999-01-18 CN CN 99200369 patent/CN2363900Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |